package com.itheima.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.itheima.reggie.common.BaseContext;
import com.itheima.reggie.common.R;
import com.itheima.reggie.config.RedisConfig;
import com.itheima.reggie.entity.User;
import com.itheima.reggie.srevice.UserService;
import com.itheima.reggie.utils.SMSUtils;
import com.itheima.reggie.utils.ValidateCodeUtils;
import com.sun.org.apache.bcel.internal.classfile.Code;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import java.util.Map;
import java.util.Random;
import java.util.concurrent.TimeUnit;

@RestController
@RequestMapping("/user")
@Slf4j
public class UserController {

    @Autowired
    private UserService userService;
    @Autowired
    private RedisTemplate redisTemplate;

    /**
     * 发送验证码
     * @return
     */
    @PostMapping("/sendMsg")
    public R<String> sendMeg( @RequestBody User user, HttpSession session){
        //获取手机号
        String phone = user.getPhone();
        log.info("phone:{}",phone);
        //生成随机的4位验证码
        if (StringUtils.isNotEmpty(phone)){
            String code = ValidateCodeUtils.generateValidateCode(4).toString();
            log.info("验证码：{}", code);
            //调用阿里提供的短信服务的API发送服务
//            SMSUtils.sendMessage("瑞吉外卖","",phone,code);
            //需要将生成的验证码放到Session
            session.setAttribute(phone,code);

            //将验证码保存到Redis，并设置时长为5分钟
            redisTemplate.opsForValue().set(phone,code,5, TimeUnit.MINUTES);
            return R.success(code);
        }
        return R.error("短信发送失败");
    }

    /**
     * 验证用户是否登录成功
     * @param map
     * @param session
     * @return
     */
    @PostMapping("/login")
    public R<User> login(@RequestBody Map map,HttpSession session){
        log.info("map:{}",map.toString());
        String phone = map.get("phone").toString();

        String code = map.get("code").toString();
//        Object codeSession = session.getAttribute(phone);
        Object codeSession = redisTemplate.opsForValue().get(phone);
        if (codeSession!=null && codeSession.equals(code)){
            LambdaQueryWrapper<User> queryWrapper = new LambdaQueryWrapper<>();
            queryWrapper.eq(User::getPhone,phone);
            User user = userService.getOne(queryWrapper);
            if (user == null){
                user = new User();
                user.setPhone(phone);
                user.setStatus(1);
                user.setName("user"+new Random().nextInt(20));
                userService.save(user);
            }
            log.info("userId:{}",user.getId());
            session.setAttribute("user",user.getId());
            //如果用户登录成功，删除code
            redisTemplate.delete(phone);
            return  R.success(user);
        }

        return R.error("登录失败");

    }

    /**
     * 退出登录
     * @param request
     * @return
     */
    @PostMapping("/loginout")
    public R<String> logout(HttpServletRequest request){
        request.getSession().removeAttribute("user");
        return R.success("退出成功！");
    }

    /**
     *  查询当前用户信息
     * @return
     */
    @GetMapping("/userInfo")
    public R<User> userInfo(){
        User user = userService.getById(BaseContext.getCurrentId());
        return R.success(user);
    }


}
